10.2.7.27 TCPC USB PHY Status Register

Name: TCPC_UPS
Offset: 0xA4
Reset: 0x0000
Property: Read-only

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
          
Access  
Reset  
Bit 76543210 
    CC2RDTCC1IDCHGDCPDMDP 
Access RRRRR 
Reset 00000 

Bit 4 – CC2RDT Type-C CC2 Comparator or Rd Trim comparator

Comparator output for Type-C CC2 voltage detection or for Rd trimming as selected via TCPC_UPC.RDSEL.

ValueDescription
0 CC2 or Rd Trim comparator output is low for Power Source Detection at Sink and is high for Sink Detection at Power Source. Voltage is below the selected TCUPC.TCIDCTSEL threshold.
1 CC2 or Rd Trim comparator output is high for Power Source Detection at Sink and is low for Sink Detection at Power Source. Voltage is above the selected TCUPC.TCIDCTSEL threshold.

Bit 3 – CC1ID Type-C CC1 Comparator or ID comparator

Comparator output for Type-C CC1 voltage detection or for ID determination as selected via TCPC_UPC.TCIDSEL.

ValueDescription
0 CC1 or ID comparator output is low for Power Source Detection at Sink and is high for Sink Detection at Power Source. Voltage is below the selected TCPC_UPC.TCIDCTSEL threshold.
1 CC1 or ID comparator output is high for Power Source Detection at Sink and is low for Sink Detection at Power Source. Voltage is above the selected TCPC_UPC.TCIDCTSEL threshold.

Bit 2 – CHGDCP Charging Port Detection, Dedicated Charging Port Detection

Comparator output of the primary or secondary detection as selected via TCPC_UPC.BCDETSEL, valid if TCPC_UPC.BCDETE has been set.
ValueDescription
0

No charging port detected

• If TCPC_UPC.BCDETSEL is set to 0, the primary detection CHG_DET output is low.

• If TCPC_UPC.BCDETSEL is set to 1, the secondary detection DCP_DET output is low.
1

Charging port detected

• If TCPC_UPC.BCDETSEL is set to 0, the primary detection CHG_DET output is high.

• If TCPC_UPC.BCDETSEL is set to 1, the secondary detection DCP_DET output is high.

Bit 1 – DM USB Differential line Minus

USB DM line state, used in the battery charger type determination to distinguish ACA with FS B-device from ACA with LS B-device.
ValueDescription
0

DM is low.
1

DM is high.

Bit 0 – DP USB Differential line Plus

USB DP line state, used for the battery charging data contact detect and ACA-Dock type determination.
ValueDescription
0

DP is low.
1

DP is high.